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CN101232836A - drying device - Google Patents

drying device Download PDF

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Publication number
CN101232836A
CN101232836A CNA2006800280311A CN200680028031A CN101232836A CN 101232836 A CN101232836 A CN 101232836A CN A2006800280311 A CNA2006800280311 A CN A2006800280311A CN 200680028031 A CN200680028031 A CN 200680028031A CN 101232836 A CN101232836 A CN 101232836A
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slot
opening
cavity
width
drying device
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CN101232836B (en
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约翰·丘吉尔
詹姆斯·戴森
彼得·D·甘麦克
罗·C·C·哈克韦尔
保罗伊·麦克诺顿
弗雷德里克·尼古拉斯
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Dyson Ltd
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Dyson Ltd
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Priority claimed from PCT/GB2006/002093 external-priority patent/WO2007015040A1/en
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K10/00—Body-drying implements; Toilet paper; Holders therefor
    • A47K10/48—Drying by means of hot air

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Drying Of Solid Materials (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Domestic Plumbing Installations (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
  • Adjustment And Processing Of Grains (AREA)

Abstract

本发明公开了一种干燥装置(10)，其具有外壳(12)、形成在外壳(12)内用于容纳目标物的空腔(30)、位于外壳(12)内且能够产生气流的风扇(40)、和至少一个与风扇(40)相通且设置在外壳(12)内以引导气流横着越过空腔(30)的槽状开口(60、62)。根据本发明，槽状开口(60、62)具有的最大宽度不大于0.8mm。这产生了非常窄的高速高压气流，其能够有效地且快速地干燥目标物。本发明适合于用于干手器。

The invention discloses a drying device (10), which has a casing (12), a cavity (30) formed in the casing (12) for accommodating objects, a fan located in the casing (12) and capable of generating air flow (40), and at least one slot-like opening (60, 62) in communication with the fan (40) and disposed within the housing (12) to direct airflow transversely across the cavity (30). According to the invention, the slot-like openings (60, 62) have a maximum width of not more than 0.8 mm. This creates a very narrow, high-velocity, high-pressure airflow that effectively and quickly dries the target. The present invention is suitable for use in hand dryers.

Description

干燥装置 drying device

技术领域technical field

本发明涉及干燥装置，其使用高速高压空气的窄喷射来干燥目标物，目标物包括人体的一部分。特别地但非排它地，本发明涉及一种干手器，其中空气射流穿过干手器的外壳内的槽状开口喷射出。The present invention relates to drying devices that use narrow jets of high velocity, high pressure air to dry objects, including parts of the human body. In particular, but not exclusively, the invention relates to a hand dryer in which a jet of air is ejected through a slot-like opening in the housing of the hand dryer.

背景技术Background technique

使用空气射流来干燥双手已广为人知。穿过槽状开口喷射至少一股空气射流的干手器的例子在GB 2249026A、JP 2002-034835A和JP 2002-306370A中已示出。然而，实际上非常难以获得均匀分布的足够高动量的气流，以在可接受的较短时间内有效地干燥使用者的双手。现有技术不能实现这一点。The use of air jets to dry hands is well known. Examples of hand dryers spraying at least one jet of air through a trough opening are shown in GB 2249026A, JP 2002-034835A and JP 2002-306370A. In practice, however, it is very difficult to obtain an evenly distributed airflow of sufficiently high momentum to effectively dry the user's hands in an acceptably short time. This cannot be achieved with existing technology.

发明内容Contents of the invention

本发明的目的是提供一种干燥装置，其在使用中喷射穿过槽状开口的空气射流，与现有技术相比，其能够在较短的时间内干燥目标物。另一目的是提供一种干手器，与现有技术相比，其能够在较短的时间内干燥使用者的双手。本发明的再一目的是提供一种改良的干手器，其中，与现有技术相比干燥效率得到了改善。It is an object of the present invention to provide a drying device which, in use, emits an air jet through a slit-shaped opening, which is capable of drying an object in a shorter time than the prior art. Another object is to provide a hand dryer capable of drying the user's hands in a shorter time than the prior art. It is a further object of the present invention to provide an improved hand dryer wherein the drying efficiency is improved compared to the prior art.

本发明提供一种干燥装置，其具有外壳、形成在外壳内用于容纳目标物的空腔、位于外壳内且能够产生气流的风扇、和至少一个与风扇相通且设置在外壳内以引导气流横着穿过空腔的槽状开口，其中槽状开口具有的最大宽度不大于1.0mm。The invention provides a drying device, which has a housing, a cavity formed in the housing for accommodating objects, a fan located in the housing and capable of generating air flow, and at least one fan communicated with the fan and arranged in the housing to guide the air flow across the A slot-like opening through the cavity, wherein the slot-like opening has a maximum width not greater than 1.0 mm.

通过设置具有宽度不超过1.0mm的槽状开口，穿过该开口喷射出的气流的动量与现有技术装置的气流动量相比得到了极大的增加。由于在目标物每次穿过离开槽状开口的气流期间，更多的水从目标物上吹离的事实，这增加了干燥器的效率。与现有技术相比时，沿槽状开口的气流分布也比较均匀。By providing a slot-like opening with a width not exceeding 1.0 mm, the momentum of the air flow ejected through the opening is greatly increased compared to that of prior art devices. This increases the efficiency of the dryer due to the fact that more water is blown off the target during each pass of the target through the airflow leaving the slot opening. The airflow distribution along the slot-shaped opening is also relatively uniform when compared with the prior art.

在一个优选的实施例中，槽状开口具有恒定的宽度，更优选的是至少0.3mm的宽度，且有利的是不超过0.4mm。这些优选的尺寸使得气流具有特别有效的动量水平。In a preferred embodiment, the slot-like opening has a constant width, more preferably a width of at least 0.3 mm, and advantageously not more than 0.4 mm. These preferred dimensions allow the airflow to have a particularly efficient momentum level.

在优选的实施例中，干手器具有两个相对的槽状开口，一个槽状开口在空腔的前壁内且另一个在后壁内。优选地，空腔的前壁内的槽状开口的宽度小于空腔的后壁内的槽状开口的宽度。这种配置允许气流的更大部分喷射到使用者的双手的手背上，这增强了干燥处理。In a preferred embodiment, the hand dryer has two opposing slot-like openings, one in the front wall of the cavity and the other in the rear wall. Preferably, the width of the slot-like opening in the front wall of the cavity is smaller than the width of the slot-like opening in the rear wall of the cavity. This configuration allows a greater portion of the airflow to be directed onto the backs of the user's hands, which enhances the drying process.

在另一优选实施例中，槽状开口具有沿其长度变化的宽度，最大宽度在槽状开口中心处。槽状开口的最大宽度优选的是不超过最小宽度的两倍。这提供了这样一种配置，其中更大量的空气从槽状开口的中心喷射，当槽状开口设置在干手器中时，该配置是有利的。In another preferred embodiment, the slot-like opening has a width that varies along its length, the greatest width being at the center of the slot-like opening. The maximum width of the slot-like opening is preferably not more than twice the minimum width. This provides an arrangement in which a greater amount of air is ejected from the center of the slot-like opening, which is advantageous when the slot-like opening is provided in a hand dryer.

附图说明Description of drawings

参考附图，对以干手器形式的本发明的实施例进行描述，其中：Embodiments of the invention in the form of a hand dryer are described with reference to the accompanying drawings, in which:

图1示出了根据本发明的第一实施例的干手器的侧视图；Figure 1 shows a side view of a hand dryer according to a first embodiment of the invention;

图2示出了图1中的干手器的透视图；Figure 2 shows a perspective view of the hand dryer in Figure 1;

图3示出了图1中的干手器的侧截面图；Figure 3 shows a side sectional view of the hand dryer in Figure 1;

图4示出了空气管道上端的以放大比例显示的侧截面图，所述空气管道形成图1中的干手器的一部分；Figure 4 shows a side sectional view, shown on an enlarged scale, of the upper end of the air duct forming part of the hand dryer in Figure 1;

图5示出了位于图1中的干手器空腔的前壁内的槽状开口的以进一步放大比例显示的示意性截面侧视图；Figure 5 shows a schematic cross-sectional side view, shown on a further enlarged scale, of a slot-like opening in the front wall of the hand dryer cavity in Figure 1;

图6示出了位于图1中的干手器空腔的后壁内的槽状开口的以同样的进一步放大比例显示的示意性截面侧视图；和Figure 6 shows a schematic cross-sectional side view, also shown on a further enlarged scale, of a slot-like opening in the rear wall of the hand dryer cavity in Figure 1; and

图7示出了根据本发明的第二实施例的、形成干手器的一部分的后槽状开口的示意性正视图。Fig. 7 shows a schematic front view of a rear slot-like opening forming part of a hand dryer according to a second embodiment of the invention.

具体实施方式Detailed ways

首先参考图1和图2，在图1至6中示出的干手器10包括外壳12，该外壳12具有前壁14、后壁16、上表面18和侧壁20、22。后壁16可合并固定装置(未示出)，用于在使用前将干手器10安装到壁或其它结构上。电连接件(未示出)也设置在后壁上或外壳12上的其它地方。从图1和图2可见，空腔30在外壳12的上部分内形成。空腔30在其上端开放，并且于该处由前壁14的顶部和上表面18的前部划界。前壁14的顶部和上表面18的前部之间的空间形成空腔入口32，该入口32足够宽以允许使用者双手穿过空腔入口32进入到空腔30。通过侧壁20、22的合适成形，空腔30还开放到干手器10的侧部。Referring initially to FIGS. 1 and 2 , the hand dryer 10 shown in FIGS. 1-6 includes a housing 12 having a front wall 14 , a rear wall 16 , an upper surface 18 and side walls 20 , 22 . Rear wall 16 may incorporate fixtures (not shown) for mounting hand dryer 10 to a wall or other structure prior to use. Electrical connections (not shown) are also provided on the rear wall or elsewhere on the housing 12 . As can be seen from FIGS. 1 and 2 , a cavity 30 is formed in the upper portion of the housing 12 . The cavity 30 is open at its upper end and is delimited there by the top of the front wall 14 and the front of the upper surface 18 . The space between the top of the front wall 14 and the front of the upper surface 18 forms a cavity entrance 32 that is wide enough to allow a user's hands to pass through the cavity entrance 32 and into the cavity 30 . Through suitable shaping of the side walls 20 , 22 the cavity 30 also opens out to the sides of the hand dryer 10 .

空腔30具有前壁34和后壁36，所述前壁34和后壁36分别界定了空腔30的前面和后面。排水沟38位于空腔30的最下端，其与位于外壳12的下部中的贮液器(未示出)相通。排水沟和贮液器的目的将在下面描述。The cavity 30 has a front wall 34 and a rear wall 36 which define the front and rear of the cavity 30, respectively. Located at the lowermost end of the cavity 30 is a drain 38 that communicates with a reservoir (not shown) located in the lower portion of the housing 12 . The purpose of the gutter and reservoir will be described below.

如图3所示，由马达(未示出)驱动的风扇40位于外壳12内。马达连接到电连接件并且由控制器41控制。风扇40的入口42与在外壳12内形成的空气入口44相通。过滤器46位于将空气入口44连接到风扇入口42的空气通道内，以防止可能导致马达或风扇40损坏的任何碎物的进入。风扇40的出口与位于外壳12内的一对空气管道50、52相通。前空气管道50主要位于外壳12的前壁14和空腔30的前壁34之间，并且后空气管道52主要位于外壳12的后壁16和空腔30的后壁36之间。As shown in FIG. 3 , a fan 40 driven by a motor (not shown) is located within the housing 12 . The motor is connected to electrical connections and is controlled by a controller 41 . The inlet 42 of the fan 40 communicates with an air inlet 44 formed in the housing 12 . A filter 46 is located within the air passage connecting the air inlet 44 to the fan inlet 42 to prevent the ingress of any debris that could cause damage to the motor or fan 40 . The outlet of the fan 40 communicates with a pair of air ducts 50 , 52 located within the housing 12 . Front air duct 50 is located primarily between front wall 14 of housing 12 and front wall 34 of cavity 30 , and rear air duct 52 is located primarily between rear wall 16 of housing 12 and rear wall 36 of cavity 30 .

空气管道50、52被配置为将来自风扇40的空气引导到一对相对的槽状开口60、62，所述开口60、62分别位于空腔30的前壁34和后壁36内。槽状开口60、62配置在空腔30的上端邻近空腔入口32。每个槽状开口60、62被构造为基本横跨空腔入口32、朝向空腔30的相对壁来引导气流。槽状开口60、62沿垂直方向偏置，并且朝向空腔30的最下端成角度。The air ducts 50 , 52 are configured to direct air from the fan 40 to a pair of opposing slot-like openings 60 , 62 in the front wall 34 and rear wall 36 of the cavity 30 , respectively. Slot-shaped openings 60 , 62 are arranged at the upper end of the cavity 30 adjacent to the cavity inlet 32 . Each slot opening 60 , 62 is configured to direct airflow substantially across the cavity inlet 32 , towards the opposing wall of the cavity 30 . The slot-like openings 60 , 62 are vertically offset and angled towards the lowermost end of the cavity 30 .

空气管道50、52被配置为将来自风扇40的空气引导到一对相对的槽状开口60、62，所述开口60、62分别位于空腔30的前壁34和后壁36内。槽状开口60、62配置在空腔30的上端邻近空腔入口32。每个槽状开口60、62被构造为基本横跨空腔入口32、朝向空腔30的相对壁来引导气流。槽状开口60、62沿垂直方向偏置，并且朝向空腔30的最下端成角度。The air ducts 50 , 52 are configured to direct air from the fan 40 to a pair of opposing slot-like openings 60 , 62 in the front wall 34 and rear wall 36 of the cavity 30 , respectively. Slot-shaped openings 60 , 62 are arranged at the upper end of the cavity 30 adjacent to the cavity inlet 32 . Each slot opening 60 , 62 is configured to direct airflow substantially across the cavity inlet 32 , towards the opposing wall of the cavity 30 . The slot-like openings 60 , 62 are vertically offset and angled towards the lowermost end of the cavity 30 .

图4更详细地示出了空气管道50、52的上端和槽状开口60、62。如可看到的，空气管道50的壁54a、54b汇聚，以形成槽状开口60，并且空气管道52的壁56a、56b汇聚，以形成槽状开口62。更详细的细节在图5和图6中可见。图5示出了具有宽度W1的槽状开口60，图6示出了具有宽度W2的槽状开口62。槽状开口60的宽度W1小于槽状开口62的宽度W2。宽度W1为0.3mm并且宽度W2为0.4mm。在该实施例中，横跨每个各自的槽状开口的长度，宽度W1和W2都恒定。Figure 4 shows the upper ends of the air ducts 50, 52 and the slot-like openings 60, 62 in more detail. As can be seen, the walls 54a, 54b of the air duct 50 converge to form the slot-like opening 60 and the walls 56a, 56b of the air duct 52 converge to form the slot-like opening 62 . Further details are visible in Figures 5 and 6. FIG. 5 shows a slot opening 60 having a width W1 and FIG. 6 shows a slot opening 62 having a width W2. The width W1 of the slot opening 60 is smaller than the width W2 of the slot opening 62 . The width W1 is 0.3 mm and the width W2 is 0.4 mm. In this embodiment, widths W1 and W2 are constant across the length of each respective slot opening.

传感器64定位在空腔30的前壁34和后壁36内，在槽状开口60、62的紧下方。这些传感器64检测经由空腔入口32插入到空腔30内的使用者双手的存在，并且配置成在使用者双手进入到空腔30时发送信号给马达。如从图1和3可见，管道50、52的壁54a、54b、56a、56b稍微突出超过空腔30的前壁34和后壁36的表面。管道50、52的壁54a、54b、56a、56b的向内突出部减小了使用者双手吸向空腔的壁34、36中的一个或另一个的倾向，这增加了使用干手器10的轻松性。传感器64定位在管道50、52的壁54a、54b、56a、56b的向内突出部的紧下方，这还减小了传感器64变脏和不运转的风险。The sensor 64 is positioned within the front wall 34 and the rear wall 36 of the cavity 30 immediately below the slot-like openings 60 , 62 . These sensors 64 detect the presence of the user's hands inserted into the cavity 30 via the cavity inlet 32 and are configured to send a signal to the motor when the user's hands have entered the cavity 30 . As can be seen from FIGS. 1 and 3 , the walls 54 a , 54 b , 56 a , 56 b of the ducts 50 , 52 protrude slightly beyond the surface of the front wall 34 and rear wall 36 of the cavity 30 . The inward projections of the walls 54a, 54b, 56a, 56b of the ducts 50, 52 reduce the tendency of the user's hands to draw toward one or the other of the walls 34, 36 of the cavity, which increases the use of the hand dryer 10. ease of use. Positioning of the sensor 64 immediately below the inward projections of the walls 54a, 54b, 56a, 56b of the ducts 50, 52 also reduces the risk of the sensor 64 becoming dirty and not functioning.

如从图2中可见，空腔入口32的形状使得前边缘32a一般笔直，并且跨过干手器10的宽度横向延伸。然而，后边缘32b具有包括两弯曲部33的形状，所述两弯曲部33大致符合人双手在穿过空腔入口32向下插入到空腔30时手背的形状。空腔入口32的后边缘32b大致关于干手器10的中心线对称。空腔入口32的前边缘32a和后边缘32b的形状和尺寸的意图在于，当使用者双手穿过空腔入口32插入到空腔30时，从使用者的双手上的任何点到最近的槽状开口的距离大致一致。As can be seen in FIG. 2 , the cavity inlet 32 is shaped such that the front edge 32 a is generally straight and extends laterally across the width of the hand dryer 10 . However, the rear edge 32b has a shape comprising two bends 33 which generally conform to the shape of the back of a human hand when inserted through the cavity entrance 32 down into the cavity 30 . The rear edge 32b of the cavity inlet 32 is generally symmetrical about the centerline of the hand dryer 10 . The shape and size of the front edge 32a and the rear edge 32b of the cavity inlet 32 are intended to be such that, when the user's hands are inserted through the cavity inlet 32 into the cavity 30, there The distance between the openings is approximately the same.

上述的干手器10按下面的方式操作。当使用者双手首先穿过空腔入口32插入到空腔30时，传感器64检测到使用者双手的存在，并且发送信号给马达以驱动风扇40。由此，风扇40被起动，并且空气经由空气入口44以约每秒20至40升的流量并且优选地以每秒至少25至27升的流量抽到干手器10中，更优选的是空气以每秒31至35升的流量抽到干手器10中。空气穿过过滤器46并沿风扇入口42流到风扇40。离开风扇40的气流分为两股分离的气流，一股气流沿前空气管道50流到槽状开口60，并且另一股气流沿后空气管道52流到槽状开口62。The hand dryer 10 described above operates in the following manner. When the user's hands are first inserted into the cavity 30 through the cavity inlet 32 , the sensor 64 detects the presence of the user's hands and sends a signal to the motor to drive the fan 40 . Thus, the fan 40 is activated and air, more preferably air Pump into the hand dryer 10 at a flow rate of 31 to 35 liters per second. Air passes through filter 46 and flows along fan inlet 42 to fan 40 . The airflow leaving the fan 40 is split into two separate airflows, one flowing along the front air duct 50 to the slot opening 60 and the other flowing along the rear air duct 52 to the slot opening 62 .

气流从槽状开口60、62以高速高压空气的非常薄的分层片(stratifiedsheet)的形式喷射出。在气流离开槽状开口60、62时，气压至少为15kPa且优选的为大约20至23kPa。The airflow is ejected from the slot openings 60, 62 in the form of a very thin stratified sheet of high velocity high pressure air. As the airflow exits the slot openings 60, 62, the air pressure is at least 15 kPa and preferably about 20 to 23 kPa.

此外，离开槽状开口60、62的气流的速度至少80m/s，并且优选的是至少100或150m/s，更优选的是大约180m/s。因为位于后管道52的端部的槽状开口62的尺寸大于位于前管道50的端部的槽状开口60的尺寸，所以相比于从管道50，从管道52喷射的空气的体积更大。这提供了更大的空气量，用于干燥使用者双手的手背，这是有利的。Furthermore, the velocity of the gas flow leaving the slot openings 60, 62 is at least 80 m/s, and preferably at least 100 or 150 m/s, more preferably about 180 m/s. Because the size of the slotted opening 62 at the end of the rear duct 52 is greater than the size of the slotted opening 60 at the end of the front duct 50 , a larger volume of air is ejected from the duct 52 than from the duct 50 . This provides a greater volume of air for drying the backs of the user's hands, which is advantageous.

分层的高速高压空气的两层薄片被导向使用者双手的表面，使用期间使用者双手完全插入到空腔30内，并且接着经由空腔入口32从空腔30收回。随着使用者双手进入然后离开空腔30，空气层片从使用者双手上吹离任何存在的水。由于离开槽状开口60、62的空气的强动量，并且因为气流均匀地沿每个槽状开口60、62的长度分布，所以可以可靠地且有效地实现这一点。Two sheets of stratified high velocity high pressure air are directed towards the surface of the user's hands which are fully inserted into cavity 30 during use and then withdrawn from cavity 30 via cavity inlet 32 . As the user's hands enter and exit cavity 30, the air ply blows any water present away from the user's hands. This can be achieved reliably and efficiently due to the strong momentum of the air leaving the slot openings 60 , 62 , and because the air flow is evenly distributed along the length of each slot opening 60 , 62 .

每个空气分层片被导向远离槽状开口的空腔30的壁，空气的各个层片是穿过所述槽状开口而喷射的。因为槽状开口60、62还朝向空腔30的最下端倾斜，因此喷射出的气流导入空腔30内。这减小了湍流(turbulent)空气运动被外壳以外的使用者--例如使用者的面部--感觉到的风险。Each layer of air is directed away from the wall of the cavity 30 of the slot-like opening through which the respective layer of air is injected. Since the slot-like openings 60 , 62 are also inclined toward the lowermost end of the cavity 30 , the ejected air flow is guided into the cavity 30 . This reduces the risk of turbulent air movements being felt by the user outside the housing, eg the user's face.

可设想，只需采取少次“穿过”上述的干手器，就能干燥使用者双手以达满意的程度。(就“穿过”而言，其意味着双手以对于一般使用者来说可接受的速度单次插入到空腔且随后从其中抽出。我们设想单次穿过具有不超过3秒的持续时间。)在单次穿过期间，通过气流得到的动量足够去除洗手后留在使用者双手表面上的大部分水。It is conceivable that only a few "passes" of the hand dryer described above are required to dry the user's hands to a satisfactory degree. (By "passing" it means a single insertion of the hands into the cavity and subsequent withdrawal therefrom at a speed acceptable to the average user. We envision a single pass having a duration of no more than 3 seconds .) During a single pass, the momentum gained by the airflow is sufficient to remove most of the water left on the surfaces of the user's hands after handwashing.

由气流去除的水收集在空腔30内。一旦气流经过使用者双手，每股气流将快速地失去其动量，并且水滴将在重力作用下滴入空腔30的下端，同时空气经过空腔入口32或经由空腔30的开放侧离开空腔30。然而，水由排水沟38收集，并到达贮液器(未示出)，在该处水被收集而用于处理。如果需要贮液器可手动清空。替换地，干手器10可合并一些形式的水耗散系统(water dispersal system)，例如包括加热器，用于将收集的水蒸发到大气中。使收集到的水耗散的装置不构成本发明的一部分。Water removed by the gas flow collects in cavity 30 . Once the airflow passes over the user's hands, each airflow will quickly lose its momentum and water droplets will drip into the lower end of the cavity 30 under the force of gravity, while air exits the cavity through the cavity inlet 32 or through the open side of the cavity 30 30. However, water is collected by drain 38 and goes to a reservoir (not shown) where it is collected for disposal. The reservoir can be emptied manually if required. Alternatively, hand dryer 10 may incorporate some form of water dispersal system, such as including a heater, for evaporating collected water into the atmosphere. Means for dissipating the collected water form no part of the invention.

本发明的第二实施例在除了位于后管道52端部的槽状开口62的宽度之外的所有方面与上述实施例相同。虽然在第一实施例中槽状开口62的宽度W2恒定，但是在第二实施例中其不恒定。此槽状开口的正视图(为了清楚起见示意性示出)显示在图7中。The second embodiment of the present invention is identical to the above-described embodiment in all respects except the width of the slot-like opening 62 at the end of the rear duct 52 . Although the width W2 of the slot-shaped opening 62 is constant in the first embodiment, it is not constant in the second embodiment. A front view (shown schematically for clarity) of this slot-like opening is shown in FIG. 7 .

在此第二实施例中，槽状开口62的下边缘62a笔直，如同第一实施例。然而，槽状开口62的上边缘62b在其中心区域1中弯曲，使得槽状开口62的宽度从最小宽度w增加到最大宽度W。在中心区域1之外，槽状开口62的最小宽度w恒定，且此最小宽度w的优选值为0.4mm。最大宽度W的优选值小于最小宽度w数值的两倍，在此情况中为0.7mm。In this second embodiment, the lower edge 62a of the slot-shaped opening 62 is straight, as in the first embodiment. However, the upper edge 62b of the slot-like opening 62 is curved in its central region 1 such that the width of the slot-like opening 62 increases from a minimum width w to a maximum width W. As shown in FIG. Outside the central region 1 , the minimum width w of the slot-shaped opening 62 is constant, and a preferred value for this minimum width w is 0.4 mm. A preferred value for the maximum width W is less than twice the value of the minimum width w, in this case 0.7 mm.

在该实施例中，中心区域1大致覆盖槽状开口62的整个长度L的一半。在从槽状开口62的任一端部沿槽状开口62的途中大约四分之一点处，上边缘62b和下边缘62a之间的距离开始增加。上边缘62b的形状是对称的，且采取在槽状开口的中心具有其最高点的平滑弯曲的形式。In this embodiment, the central region 1 covers approximately half of the entire length L of the slot-shaped opening 62 . At about a quarter of the way along the slot opening 62 from either end of the slot opening 62, the distance between the upper edge 62b and the lower edge 62a begins to increase. The upper edge 62b is symmetrical in shape and takes the form of a smooth curve having its highest point in the center of the slot-like opening.

使用中，与第一实施例相比，根据第二实施例的干手器能够穿过后槽状开口62的中心喷射出增加量的空气。这是有利的，因为使用这种类型的干手器时双手的拇指和食指周围的区域通常最难于干燥。在双手的该区域内喷射增加量的空气改善了干燥器均匀地干燥双手的能力。In use, the hand dryer according to the second embodiment is capable of ejecting an increased amount of air through the center of the rear slot opening 62 compared to the first embodiment. This is advantageous because the area around the thumb and forefinger of the hands is often the hardest to dry when using this type of hand dryer. Spraying an increased amount of air over this area of the hands improves the dryer's ability to dry the hands evenly.

应认识到，在此第二实施例中，后槽状开口62的宽度可通过改变任一边缘或两边缘的形状而改变，并且槽的确切形状不限于图7中所示的。It should be appreciated that in this second embodiment, the width of the rear slot-like opening 62 can be varied by changing the shape of either or both edges, and that the exact shape of the slot is not limited to that shown in FIG. 7 .

在进一步的替换实施例中，槽状开口60、62可配置为使得从所述开口喷射的空气层片基本沿大致彼此平行的平面而被引导。这使得在干燥装置使用中的同时在空腔30内存在的湍流的量最小化。In a further alternative embodiment, the slot-like openings 60, 62 may be configured such that the air plies ejected from said openings are directed substantially along planes substantially parallel to each other. This minimizes the amount of turbulence that exists within cavity 30 while the drying device is in use.

本发明不期望受限到上述实施例的精确细节。不改变本发明范围的细节的修改和变化对于本领域读者是显而易见的。例如，在不脱离本发明的本质的情况下，空腔30和其入口32的形状可改变。The invention is not intended to be limited to the precise details of the above-described examples. Modifications and changes in detail that do not alter the scope of the invention will be apparent to readers of the art. For example, the shape of cavity 30 and its inlet 32 may vary without departing from the essence of the invention.

Claims (21)

1.一种干燥装置，其具有外壳、形成在所述外壳内用于容纳目标物的空腔、位于所述外壳内且能够产生气流的风扇、和至少一个与所述风扇相通且设置在所述外壳内以引导气流横着穿过所述空腔的槽状开口，其中所述槽状开口具有的最大宽度不大于1.0mm。1. A drying device, which has a housing, is formed in the housing to accommodate the cavity of the target object, is located in the housing and can generate a fan of airflow, and at least one communicates with the fan and is arranged on the A slot-shaped opening in the housing to guide airflow across the cavity, wherein the slot-shaped opening has a maximum width not greater than 1.0 mm. 2.如权利要求1所述的干燥装置，其中所述槽状开口的宽度至少为0.3mm。2. The drying device according to claim 1, wherein the width of the slot-shaped opening is at least 0.3 mm. 3.如权利要求2所述的干燥装置，其中所述槽状开口的宽度不大于0.7mm。3. The drying device according to claim 2, wherein the width of the slot-shaped opening is not greater than 0.7 mm. 4.如前述权利要求中任一项所述的干燥装置，其中穿过所述槽状开口喷射的气流的速度至少为80m/s。4. Drying apparatus as claimed in any one of the preceding claims, wherein the velocity of the airflow injected through the slot-like opening is at least 80 m/s. 5.如权利要求4所述的干燥装置，其中穿过所述槽状开口喷射的气流的速度至少为100m/s。5. The drying device according to claim 4, wherein the velocity of the air flow injected through the slot-shaped opening is at least 100 m/s. 6.如权利要求5所述的干燥装置，其中穿过所述槽状开口喷射的气流的速度至少为150m/s。6. The drying device according to claim 5, wherein the velocity of the air flow injected through the slot-like opening is at least 150 m/s. 7.如权利要求6所述的干燥装置，其中穿过所述槽状开口喷射的气流的速度大约为180m/s。7. The drying device as claimed in claim 6, wherein the velocity of the air flow injected through the slot-shaped opening is about 180 m/s. 8.如前述权利要求中任一项所述的干燥装置，其中穿过所述槽状开口喷射的气流的压力至少为15kPa。8. Drying apparatus as claimed in any one of the preceding claims, wherein the pressure of the gas flow injected through the slot-like opening is at least 15 kPa. 9.如权利要求8所述的干燥装置，其中穿过所述槽状开口喷射的气流的压力至少为22kPa。9. The drying apparatus of claim 8, wherein the pressure of the gas flow injected through the slot-shaped opening is at least 22 kPa. 10.如前述权利要求中任一项所述的干燥装置，其中所述槽状开口具有沿其长度恒定的宽度。10. Drying apparatus as claimed in any one of the preceding claims, wherein the slot-like opening has a constant width along its length. 11.如权利要求1至9中任一项所述的干燥装置，其中所述槽状开口具有沿其长度变化的宽度。11. Drying apparatus as claimed in any one of claims 1 to 9, wherein the slot-like opening has a width that varies along its length. 12.如权利要求11所述的干燥装置，其中所述槽状开口的宽度在其中心处最大。12. The drying device of claim 11, wherein the width of the slot-like opening is greatest at its center. 13.如权利要求11或12所述的干燥装置，其中所述槽状开口的最大宽度小于其最小宽度的两倍。13. A drying device as claimed in claim 11 or 12, wherein the maximum width of the slot-like opening is less than twice its minimum width. 14.如权利要求13所述的干燥装置，其中所述槽状开口大致一半的长度上具有大于最小宽度的宽度。14. The drying device of claim 13, wherein the slot-like opening has a width greater than the minimum width for substantially half its length. 15.如前述权利要求中的任一项所述的干燥装置，其中设置了两个相对的槽状开口，在所述空腔的前壁和后壁的每一个上设置有一个槽状开口。15. A drying device as claimed in any one of the preceding claims, wherein two opposed slot-like openings are provided, one slot-like opening in each of the front and rear walls of the cavity. 16.如权利要求15所述的干燥装置，其中所述两个槽状开口具有不同的宽度。16. The drying device of claim 15, wherein the two slot-like openings have different widths. 17.如权利要求16所述的干燥装置，其中所述空腔前壁内的槽状开口的宽度小于所述空腔后壁内的槽状开口的宽度。17. The drying device of claim 16, wherein the width of the slot-like opening in the front wall of the cavity is smaller than the width of the slot-like opening in the rear wall of the cavity. 18.如权利要求15至17中任一项所述的干燥装置，其中所述相对的槽状开口配置为使得在使用中穿过所述槽状开口喷射的气流朝向所述空腔的最内端倾斜。18. Drying apparatus as claimed in any one of claims 15 to 17, wherein the opposed slot-like openings are arranged such that in use an airflow injected through the slot-like openings is towards the innermost part of the cavity end slanted. 19.如权利要求16或17所述的干燥装置，其中所述相对的槽状开口配置为使得在使用中穿过所述槽状开口喷射的气流大致彼此平行。19. Drying apparatus as claimed in claim 16 or 17, wherein the opposed slot-like openings are arranged such that, in use, air streams injected through the slot-like openings are substantially parallel to each other. 20.如前述权利要求中的任一项所述的干燥装置，其中所述干燥装置是干手器。20. Drying device as claimed in any one of the preceding claims, wherein the drying device is a hand dryer. 21.一种结合附图中示出的实施例如前面所大致描述的干燥装置。21. A drying apparatus as substantially hereinbefore described with reference to the embodiments shown in the accompanying drawings.
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GB0600872A GB2428570A (en) 2005-07-30 2006-01-17 Drying apparatus having at least one slot-like opening
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